#include <stdio.h>
int func(int n)
{
  int sum=0,i;
  for(i=0;i<n;i++){
      sum+=i;
    }
    return sum;
}

int main(void)
{  
    int i;
    long result =0;
    for(i=1;i<=100;i++){
       result +=i;
     }
     printf("result[1-100] =%d \n",result);
     printf("result[1-250] =%d \n",func(250));
}
